Frequencies for first 10,000 rows of versionnum variable in rate2014 dataset :

    Version |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        552        5.52        5.52
          2 |        414        4.14        9.66
          3 |        288        2.88       12.54
          6 |      8,424       84.24       96.78
          7 |        322        3.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 6 Oct 2016